Open AccessFillers for modification of polyester powder coating
Author(s) -
Volodymyr Gots,
Oles Lastivka,
Oleksandr Tomin,
S. A. Tymoshenko
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/907/1/012051
Subject(s) - materials science , coating , composite material , gloss (optics) , filler (materials) , izod impact strength test , flexural strength , wollastonite , mechanical strength , powder coating , ultimate tensile strength , raw material , chemistry , organic chemistry
In the article effectiveness of the use of fillers to improve the physical and mechanical properties of the coating varied depending on the average size of the filler particles and crystalline shape was studied. According to the indicators of impact strength to back impact and bending strength of the coating, the most effective is the use of microsilica with an average size of 2.9 μm. As the average filler size increases, the gloss and impact strength of the coating reduce. To increase the bending strength of the coating, it is advisable to use fillers in the form of wollastonite, which is characterized by a fibrous crystal shape, which improves the physical and mechanical properties of the coating and prevents cracking, acting as a reinforcing agent. In addition, the analysis of the obtained study results shows that the use of the studied Ukrainian-made fillers in the powder paint composition promotes obtaining a covering with adjustable physical and mechanical characteristics.